An alleged prostitute has been arrested and charged in connection with a home-invasion robbery last month in an upscale Santa Clara County community that left a former winery owner dead and his wife injured.

Raven Chanel Dixon, 22, of Alameda was booked on suspicion of being an accessory in the killing of Raveesh "Ravi" Kumra, 66, whose body was found Nov. 30 after police were summoned by the victim's wife, Harinder Kumra, 63, to their ransacked, 7,000-square-foot home on Withey Road.

Prosecutors charged Dixon on Friday with being accessory to murder after the fact as well as a gang enhancement.

Authorities declined to elaborate, and details of the case were sealed. But Sgt. Steve Walpole of the Los Gatos/Monte Sereno police said investigators believe Kumra's slaying was "most likely not a random act" and that residents did not need to be worried.

Dixon was arrested Tuesday in Mountain View for allegedly offering an undercover police officer a sex act for $600 and cocaine for $50, authorities said. Dixon, who records show has admitted to being a prostitute for six years, appeared in court Friday but did not enter a plea. She is being held in lieu of $1 million bail.

Outside court, Dixon's mother, Sandra Mitchell, said, "She's a nervous wreck. This is new, and to see her in chains like that, it's hard for our family. Just continue to pray for her. She's scared."

Police have declined to say how Kumra, former owner of Mountain Winery in Saratoga and a cell phone entrepreneur, was killed. His wife was injured during what police said was a home-invasion robbery. She called 911 about 1:40 a.m., after the attack was over.

Police have not said whether the robbers took anything from the four-bedroom, seven-bath brick mansion that sits on 3 acres behind a brick wall, a mechanical gate and a circular driveway.

Investigators previously released a sketch of one of the suspects - a skinny Latino or white man, in his early to mid-20s, about 6 feet tall, with black hair, dark eyes and a light complexion.